:root{--bg-primary: #f8fafc;--bg-secondary: #ffffff;--bg-tertiary: #f1f5f9;--bg-card: #ffffff;--bg-card-hover: #f8fafc;--bg-glass: rgba(255, 255, 255, .85);--border-color: #e2e8f0;--border-subtle: #f1f5f9;--border-focus: #0284c7;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--accent-primary: #0284c7;--accent-primary-hover: #0369a1;--accent-primary-light: rgba(2, 132, 199, .08);--accent-primary-glow: rgba(2, 132, 199, .25);--accent-success: #10b981;--accent-success-light: rgba(16, 185, 129, .1);--accent-warning: #f59e0b;--accent-warning-light: rgba(245, 158, 11, .1);--accent-danger: #ef4444;--accent-danger-light: rgba(239, 68, 68, .1);--accent-purple: #8b5cf6;--accent-purple-light: rgba(139, 92, 246, .1);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06), 0 1px 3px rgba(0, 0, 0, .04);--shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, .08), 0 4px 8px -2px rgba(0, 0, 0, .04);--shadow-xl: 0 24px 38px -6px rgba(0, 0, 0, .12), 0 8px 16px -4px rgba(0, 0, 0, .06);--shadow-glow: 0 0 20px rgba(2, 132, 199, .2);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-sans: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", monospace;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1);--transition-bounce: .4s cubic-bezier(.34, 1.56, .64, 1)}body.theme-dark{--bg-primary: #080c14;--bg-secondary: #0f1523;--bg-tertiary: #161e31;--bg-card: #121929;--bg-card-hover: #182238;--bg-glass: rgba(15, 21, 35, .85);--border-color: #1f2a40;--border-subtle: #141c2c;--border-focus: #38bdf8;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #64748b;--accent-primary: #38bdf8;--accent-primary-hover: #0ea5e9;--accent-primary-light: rgba(56, 189, 248, .12);--accent-primary-glow: rgba(56, 189, 248, .35);--accent-success: #22c55e;--accent-success-light: rgba(34, 197, 94, .14);--accent-warning: #fbbf24;--accent-warning-light: rgba(251, 191, 36, .14);--accent-danger: #f87171;--accent-danger-light: rgba(248, 113, 113, .14);--accent-purple: #a78bfa;--accent-purple-light: rgba(167, 139, 250, .14);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 6px 16px rgba(0, 0, 0, .45);--shadow-lg: 0 14px 28px -4px rgba(0, 0, 0, .6), 0 6px 12px -2px rgba(0, 0, 0, .4);--shadow-xl: 0 28px 48px -8px rgba(0, 0, 0, .75);--shadow-glow: 0 0 25px rgba(56, 189, 248, .25)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;overflow-x:hidden;background-image:radial-gradient(circle at 15% 15%,var(--accent-primary-light) 0%,transparent 40%),radial-gradient(circle at 85% 85%,var(--accent-purple-light) 0%,transparent 40%);background-attachment:fixed}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}button{cursor:pointer;border:none;background:none;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;transition:all var(--transition-fast)}.kbd-pill{display:inline-flex;align-items:center;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-muted);font-family:var(--font-mono);font-size:.7rem;padding:.15rem .4rem;border-radius:var(--radius-sm);box-shadow:0 1px #0003}.glow-hover:hover{box-shadow:var(--shadow-glow);transform:translateY(-2px)}.app-container{display:flex;min-height:100vh}.app-sidebar{width:270px;background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:1.5rem 1.15rem;display:flex;flex-direction:column;gap:1.5rem;flex-shrink:0;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:20}.app-main{flex:1;display:flex;flex-direction:column;min-width:0;overflow-y:auto;height:100vh}.app-content{padding:2.25rem 2.5rem;max-width:1350px;width:100%;margin:0 auto;animation:fadeIn .3s cubic-bezier(.4,0,.2,1)}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.22rem .65rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase}.badge-blue{background:var(--accent-primary-light);color:var(--accent-primary);border:1px solid rgba(56,189,248,.2)}.badge-green{background:var(--accent-success-light);color:var(--accent-success);border:1px solid rgba(34,197,94,.2)}.badge-amber{background:var(--accent-warning-light);color:var(--accent-warning);border:1px solid rgba(251,191,36,.2)}.badge-red{background:var(--accent-danger-light);color:var(--accent-danger);border:1px solid rgba(248,113,113,.2)}.badge-purple{background:var(--accent-purple-light);color:var(--accent-purple);border:1px solid rgba(167,139,250,.2)}.tag-pill{display:inline-flex;align-items:center;gap:.25rem;background:var(--bg-tertiary);color:var(--text-secondary);padding:.25rem .65rem;border-radius:var(--radius-md);font-size:.8rem;font-weight:600;border:1px solid var(--border-color);transition:all var(--transition-fast)}.tag-pill:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.btn-primary{background:linear-gradient(135deg,var(--accent-primary) 0%,var(--accent-primary-hover) 100%);color:#fff;padding:.7rem 1.35rem;border-radius:var(--radius-md);font-weight:700;font-size:.9rem;box-shadow:0 4px 14px var(--accent-primary-glow);position:relative;overflow:hidden}.btn-primary:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:.5s}.btn-primary:hover:after{left:100%}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px var(--accent-primary-glow)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);padding:.7rem 1.25rem;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--text-muted);transform:translateY(-1px)}.btn-icon{padding:.55rem;border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast)}.btn-icon:hover{background:var(--bg-tertiary);color:var(--text-primary)}.input-control{width:100%;padding:.75rem 1.1rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);outline:none;transition:all var(--transition-fast);font-size:.95rem}.input-control:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-primary-light),0 0 15px var(--accent-primary-glow)}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:1.5rem;box-shadow:var(--shadow-sm);transition:all var(--transition-normal);position:relative}.card:hover{border-color:#38bdf866;box-shadow:var(--shadow-md)}.flashcard-container{perspective:1200px;width:100%;max-width:680px;min-height:400px;margin:0 auto;cursor:pointer}.flashcard-inner{position:relative;width:100%;min-height:400px;text-align:center;transition:transform .65s cubic-bezier(.34,1.56,.64,1);transform-style:preserve-3d}.flashcard-inner.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;width:100%;min-height:400px;-webkit-backface-visibility:hidden;backface-visibility:hidden;border-radius:var(--radius-xl);padding:2.75rem;display:flex;flex-direction:column;justify-content:space-between;background:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.flashcard-back{transform:rotateY(180deg)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#04070ebf;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;padding:1rem;animation:fadeIn .2s ease}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);max-width:720px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-xl);animation:modalPop .25s cubic-bezier(.34,1.56,.64,1)}.modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}@keyframes modalPop{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.sound-wave{display:inline-flex;align-items:center;gap:3px;height:16px}.sound-wave span{width:3px;height:100%;background:var(--accent-primary);border-radius:2px;animation:wave 1s ease-in-out infinite}.sound-wave span:nth-child(2){animation-delay:.2s}.sound-wave span:nth-child(3){animation-delay:.4s}.sound-wave span:nth-child(4){animation-delay:.6s}@keyframes wave{0%,to{height:4px}50%{height:16px}}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:10px;z-index:999}.toast{background:var(--bg-card);border:1px solid var(--border-color);padding:.85rem 1.25rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);display:flex;align-items:center;gap:.75rem;font-size:.9rem;font-weight:600;color:var(--text-primary);animation:slideUp .3s cubic-bezier(.34,1.56,.64,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:868px){.app-container{flex-direction:column}.app-sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border-color);padding:.85rem 1.25rem;flex-direction:row;align-items:center;justify-content:space-between}.app-content{padding:1.25rem 1rem}}.quiz-center-container{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:1.75rem;animation:fadeIn .3s ease}.quiz-lobby-header{text-align:center;margin-bottom:.5rem}.lobby-badge{display:inline-block;background:var(--accent-primary-light);color:var(--accent-primary);padding:.3rem .85rem;border-radius:var(--radius-full);font-size:.8rem;font-weight:800;letter-spacing:.04em;margin-bottom:.5rem}.quiz-lobby-header h1{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin-bottom:.4rem}.quiz-lobby-header p{color:var(--text-secondary);font-size:.95rem}.quiz-main-tabs-container{display:inline-flex;background:var(--bg-secondary);padding:5px;border-radius:var(--radius-full);border:1px solid var(--border-color);margin:0 auto 1.25rem;align-self:center;box-shadow:var(--shadow-sm);gap:4px}.quiz-main-tab-btn{display:inline-flex;align-items:center;gap:8px;padding:.65rem 1.6rem;border-radius:var(--radius-full);border:none;background:transparent;color:var(--text-secondary);font-weight:700;font-size:.95rem;cursor:pointer;transition:all var(--transition-fast)}.quiz-main-tab-btn:hover{color:var(--text-primary)}.quiz-main-tab-btn.active{background:var(--bg-card);color:var(--text-primary);box-shadow:0 2px 10px #00000014}.quiz-main-tab-btn.active.tab-new{color:var(--accent-primary)}.quiz-main-tab-btn.active.tab-history{color:#8b5cf6}.quiz-main-tab-btn .tab-badge{background:#8b5cf6;color:#fff;padding:2px 8px;border-radius:var(--radius-full);font-size:.75rem;font-weight:800}.quiz-category-card-selector{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:.5rem}@media(max-width:640px){.quiz-category-card-selector{grid-template-columns:1fr}}.category-select-card{display:flex;align-items:center;gap:12px;padding:1.1rem 1.25rem;background:var(--bg-tertiary);border:2px solid var(--border-color);border-radius:var(--radius-lg);cursor:pointer;text-align:left;transition:all var(--transition-fast)}.category-select-card:hover{background:var(--bg-card-hover);border-color:var(--border-color-hover);transform:translateY(-1px)}.category-select-card.active.vocab{background:#6366f114;border-color:var(--accent-primary);box-shadow:0 4px 16px #6366f11f}.category-select-card.active.pattern{background:#ec489914;border-color:#ec4899;box-shadow:0 4px 16px #ec48991f}.cat-icon-box{width:44px;height:44px;border-radius:12px;background:var(--bg-card);display:flex;align-items:center;justify-content:center;font-size:1.4rem;box-shadow:var(--shadow-sm);flex-shrink:0}.cat-text-box{flex:1;display:flex;flex-direction:column}.cat-title{font-size:1.02rem;font-weight:800;color:var(--text-primary);margin-bottom:2px}.cat-desc{font-size:.8rem;color:var(--text-secondary)}.cat-radio{width:18px;height:18px;border-radius:50%;border:2px solid var(--border-color);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--transition-fast)}.category-select-card.active.vocab .cat-radio{border-color:var(--accent-primary);background:var(--accent-primary)}.category-select-card.active.pattern .cat-radio{border-color:#ec4899;background:#ec4899}.cat-radio-inner{width:6px;height:6px;border-radius:50%;background:#fff}.quiz-setup-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:2rem;display:flex;flex-direction:column;gap:1.75rem;box-shadow:var(--shadow-md)}.setup-section h3{font-size:1rem;font-weight:700;margin-bottom:.85rem;color:var(--text-primary)}.topics-chip-grid{display:flex;flex-wrap:wrap;gap:.65rem}.topic-chip-btn{display:flex;align-items:center;gap:.5rem;padding:.6rem 1.1rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-full);color:var(--text-secondary);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--transition-fast)}.topic-chip-btn:hover{background:var(--bg-card-hover);border-color:var(--accent-primary);color:var(--text-primary)}.topic-chip-btn.active{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff;box-shadow:0 4px 14px var(--accent-primary-glow)}.topic-chip-btn .topic-count{font-size:.75rem;opacity:.85;background:#00000026;padding:.1rem .45rem;border-radius:var(--radius-full)}.setup-grid-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media(max-width:640px){.setup-grid-row{grid-template-columns:1fr}}.count-selector-row,.mode-selector-row{display:flex;gap:.5rem;flex-wrap:wrap}.count-pill-btn,.mode-pill-btn{flex:1;min-width:80px;padding:.75rem .85rem;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg);color:var(--text-secondary);cursor:pointer;text-align:center;transition:all var(--transition-fast);display:flex;flex-direction:column;gap:2px}.count-pill-btn.active,.mode-pill-btn.active{background:var(--accent-primary-light);border-color:var(--accent-primary);color:var(--accent-primary);font-weight:700}.count-pill-btn small{font-size:.72rem;opacity:.8}.lobby-submit-row{margin-top:.5rem}.start-quiz-big-btn{width:100%;padding:1.1rem;font-size:1.1rem;font-weight:800;border-radius:var(--radius-lg)}.quiz-center-container{max-width:860px;margin:0 auto;padding:1rem 0 3rem}.quiz-active-card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:24px;padding:2.25rem 2.5rem;box-shadow:0 20px 50px -12px #00000026,0 0 0 1px #ffffff0d;display:flex;flex-direction:column;gap:1.75rem;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);position:relative;overflow:hidden}.quiz-top-bar{display:flex;justify-content:space-between;align-items:center}.quiz-progress-info{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap}.question-counter-badge{font-weight:800;font-size:.95rem;color:var(--accent-primary);background:var(--accent-primary-light);padding:.35rem .85rem;border-radius:var(--radius-full);letter-spacing:.04em;display:inline-flex;align-items:center}.quiz-topic-pill{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-secondary);font-size:.82rem;font-weight:700;padding:.35rem .8rem;border-radius:var(--radius-full);display:inline-flex;align-items:center;gap:5px}.quiz-streak-pill{background:linear-gradient(135deg,#f59e0b33,#f59e0b1a);border:1px solid rgba(245,158,11,.4);color:#f59e0b;font-size:.82rem;font-weight:800;padding:.35rem .85rem;border-radius:var(--radius-full);display:inline-flex;align-items:center;gap:5px}.quiz-exit-btn{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-muted);padding:.4rem .9rem;border-radius:var(--radius-lg);font-size:.85rem;font-weight:700;cursor:pointer;transition:all var(--transition-fast)}.quiz-exit-btn:hover{background:#ef44441a;border-color:#ef4444;color:#ef4444}.quiz-progress-track{width:100%;height:8px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-full);overflow:hidden}.quiz-progress-fill{height:100%;background:linear-gradient(90deg,#0284c7,#38bdf8);border-radius:var(--radius-full);transition:width .4s cubic-bezier(.34,1.56,.64,1);box-shadow:0 0 12px #0284c780}.quiz-question-box{background:var(--bg-card);border:1px solid var(--border-color);border-radius:20px;padding:2.25rem 2rem;text-align:center;box-shadow:0 8px 30px #0000000a;position:relative}.prompt-header{display:flex;flex-direction:column;align-items:center;gap:.45rem;margin-bottom:1.25rem}.prompt-type-badge{background:var(--accent-primary-light);color:var(--accent-primary);font-size:.82rem;font-weight:800;padding:.35rem .95rem;border-radius:var(--radius-full);letter-spacing:.02em;border:1px solid rgba(2,132,199,.2)}.prompt-subtitle{font-size:.92rem;color:var(--text-muted);font-weight:600}.question-text{font-size:1.85rem;font-weight:800;letter-spacing:-.02em;color:var(--text-primary);line-height:1.35;max-width:680px;margin:0 auto}.quiz-formula-tag{display:inline-block;margin:.75rem auto 0;padding:.4rem 1rem;background:#ec48991a;border:1px solid rgba(236,72,153,.25);color:#ec4899;border-radius:var(--radius-lg);font-size:.9rem;font-weight:700;font-family:var(--font-mono)}.phonetic-audio-row{display:inline-flex;align-items:center;gap:.6rem;margin-top:.65rem;background:var(--bg-tertiary);padding:.3rem .85rem;border-radius:var(--radius-full);border:1px solid var(--border-color)}.phonetic-text{font-family:var(--font-mono);color:var(--accent-primary);font-weight:600;font-size:.95rem}.mini-audio-btn{background:var(--accent-primary);color:#fff;border:none;cursor:pointer;width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;transition:transform var(--transition-bounce);box-shadow:0 2px 8px #0284c74d}.mini-audio-btn:hover{transform:scale(1.15)}.listening-prompt-card{display:flex;flex-direction:column;align-items:center;gap:1rem;padding:1.25rem}.big-speaker-btn{background:linear-gradient(135deg,#0284c7,#0369a1);color:#fff;border:none;width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 30px #0284c766,0 0 0 8px #0284c726;transition:all var(--transition-bounce)}.big-speaker-btn:hover{transform:scale(1.1);box-shadow:0 14px 36px #0284c780,0 0 0 12px #0284c733}.listening-hint-box{display:flex;flex-direction:column;align-items:center;gap:2px}.listening-hint{font-size:1rem;color:var(--text-primary);font-weight:700}.listening-subhint{font-size:.82rem;color:var(--text-muted);font-weight:500}.quiz-options-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}@media(max-width:640px){.quiz-options-grid{grid-template-columns:1fr}}.quiz-option-btn{display:flex;align-items:center;gap:1rem;padding:1.2rem 1.35rem;background:var(--bg-card);border:2px solid var(--border-color);border-radius:18px;color:var(--text-primary);font-weight:600;font-size:1.05rem;line-height:1.45;cursor:pointer;text-align:left;transition:all .2s cubic-bezier(.16,1,.3,1);position:relative;box-shadow:0 4px 12px #00000008}.quiz-option-btn:hover:not(:disabled){border-color:var(--accent-primary);background:var(--bg-card-hover);transform:translateY(-2px);box-shadow:0 8px 24px -4px #0284c733}.quiz-option-btn:hover:not(:disabled) .option-key-badge{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.option-key-badge{background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-secondary);font-weight:800;font-size:.9rem;width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s ease;font-family:var(--font-mono)}.option-text{flex:1;word-break:break-word}.option-status-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0}.option-status-icon.success{color:#10b981}.option-status-icon.danger{color:#ef4444}.quiz-option-btn.correct-option{background:linear-gradient(135deg,#10b9811f,#10b9810d)!important;border-color:#10b981!important;color:#10b981!important;font-weight:700;box-shadow:0 0 0 1px #10b981,0 8px 25px -4px #10b98140!important;animation:bounceOption .4s cubic-bezier(.34,1.56,.64,1)}.quiz-option-btn.correct-option .option-key-badge{background:#10b981!important;border-color:#10b981!important;color:#fff!important}.quiz-option-btn.incorrect-option{background:linear-gradient(135deg,#ef44441f,#ef44440d)!important;border-color:#ef4444!important;color:#ef4444!important;font-weight:700;box-shadow:0 0 0 1px #ef4444,0 8px 25px -4px #ef444440!important;animation:shakeOption .4s ease}.quiz-option-btn.incorrect-option .option-key-badge{background:#ef4444!important;border-color:#ef4444!important;color:#fff!important}.quiz-option-btn.dimmed-option{opacity:.42;cursor:default}@keyframes bounceOption{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}@keyframes shakeOption{0%,to{transform:translate(0)}20%,60%{transform:translate(-4px)}40%,80%{transform:translate(4px)}}.answer-feedback-card{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.25rem;padding:1.25rem 1.5rem;border-radius:18px;animation:slideUpFade .3s cubic-bezier(.16,1,.3,1)}.answer-feedback-card.feedback-correct{background:linear-gradient(135deg,#10b9811f,#10b9810a);border:1px solid rgba(16,185,129,.3)}.answer-feedback-card.feedback-incorrect{background:linear-gradient(135deg,#ef44441f,#ef44440a);border:1px solid rgba(239,68,68,.3)}.feedback-inner-row{display:flex;align-items:center;gap:.85rem}.feedback-icon-wrap{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.feedback-icon-wrap.correct{background:#10b98133;color:#10b981}.feedback-icon-wrap.incorrect{background:#ef444433;color:#ef4444}.feedback-title{font-weight:800;font-size:1.05rem;margin-bottom:2px}.feedback-title.correct{color:#10b981}.feedback-title.incorrect{color:#ef4444}.feedback-desc{font-size:.9rem;color:var(--text-secondary)}.correct-answer-highlight{color:var(--text-primary);background:#ffffff1a;padding:.1rem .4rem;border-radius:4px}.next-quiz-btn{padding:.85rem 1.75rem;font-size:1rem;font-weight:800;border-radius:14px;display:inline-flex;align-items:center;gap:.6rem;background:linear-gradient(135deg,#0284c7,#0369a1);box-shadow:0 8px 20px #0284c759;margin-left:auto;cursor:pointer;transition:all var(--transition-fast)}.next-quiz-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px #0284c773}@keyframes slideUpFade{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.quiz-result-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:2.5rem;box-shadow:var(--shadow-xl);display:flex;flex-direction:column;gap:2rem;text-align:center}.result-badge-icon{width:72px;height:72px;border-radius:50%;font-size:2.2rem;display:inline-flex;align-items:center;justify-content:center;margin-bottom:.75rem}.result-badge-icon.success{background:var(--accent-success-light)}.result-badge-icon.warning{background:var(--accent-warning-light)}.result-header h2{font-size:1.85rem;font-weight:800;letter-spacing:-.02em}.result-subtitle{color:var(--text-secondary);font-size:1rem;margin-top:.25rem}.result-stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.result-stat-box{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:1.25rem;display:flex;flex-direction:column;gap:.35rem}.result-stat-box .stat-label{font-size:.8rem;color:var(--text-muted);font-weight:600;text-transform:uppercase}.result-stat-box .stat-val{font-size:1.6rem;font-weight:800}.result-stat-box .stat-val.score{color:var(--accent-primary)}.result-stat-box .stat-val.xp{color:var(--accent-warning)}.result-stat-box .stat-val.accuracy{color:var(--accent-success)}.result-breakdown{text-align:left}.result-breakdown h3{font-size:1.1rem;font-weight:800;margin-bottom:1rem}.breakdown-list{display:flex;flex-direction:column;gap:.65rem;max-height:280px;overflow-y:auto}.breakdown-item{display:flex;align-items:flex-start;gap:.85rem;padding:.85rem 1rem;background:var(--bg-tertiary);border-radius:var(--radius-lg);border:1px solid var(--border-color);font-size:.9rem}.breakdown-item.correct{border-left:3px solid var(--accent-success)}.breakdown-item.incorrect{border-left:3px solid var(--accent-danger)}.item-word{display:flex;align-items:center;gap:.4rem}.item-answers{margin-top:.2rem;font-size:.85rem;color:var(--text-secondary)}.text-green{color:var(--accent-success);font-weight:600}.text-red{color:var(--accent-danger);font-weight:600}.result-actions{display:flex;justify-content:center;gap:.85rem;flex-wrap:wrap}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}@keyframes bounce{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}